Mouse Model News and Research

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Targeted nanospheres find, penetrate, then fuel burning of melanoma

Hollow gold nanospheres equipped with a targeting peptide find melanoma cells, penetrate them deeply, and then cook the tumor when bathed with near-infrared light. When heated with lasers, the actively targeted hollow gold nanospheres did eight times more damage to melanoma tumors in mice than did the same nanospheres that gathered less directly in the tumors.

23 Feb 2009

Tumor suppressor may weaken fibrotic disease

New research reveals a critical cellular signaling pathway that is responsible for generating excess connective tissue in multiple organs, similar to what is seen in human patients with scleroderma.

18 Feb 2009

Enzyme activates stress response and hypertrophy of the heart

An enzyme makes the mouse heart prone to chronic cardiac insufficiency – if it is suppressed, the heart remains strong despite increased stress.

18 Feb 2009

Dendritic cells as a new player in arteries and heart valves

In 1973, Ralph M. Steinman launched a new scientific discipline when he published his discovery of the dendritic cell, an odd-shaped player in the immune system.

16 Feb 2009

Mouse model mimics hyperglycemia, aids in diabetes research

UT Southwestern Medical Center researchers have genetically engineered a laboratory mouse in which pancreatic beta cells can regenerate after being induced to die.

16 Feb 2009

New method to stimulate immune system may be effective at reducing amyloid burden in Alzheimer?s

Researchers at NYU Langone Medical Center have discovered a novel way to stimulate the innate immune system of mice with Alzheimer's disease (AD) - leading to reduced amyloid deposits and the prevention of Alzheimer's disease related pathology - without causing toxic side effects.

15 Feb 2009

Micro RNA plays a key role in melanoma metastasis

Scientists have long wondered how melanoma cells travel from primary tumors on the surface of the skin to the brain, liver and lungs, where they become more aggressive, resistant to therapy, and deadly.

9 Feb 2009

Body's defenses may worsen chronic obstructive pulmonary disorder

Although the immune system is designed to protect the body from harm, it may actually worsen one of the most difficult-to-treat respiratory diseases: chronic obstructive pulmonary disorder (COPD), according to new University of Cincinnati (UC) research.

9 Feb 2009

New understanding of blinding degenerative eye conditions

Though based on mouse studies, the research bolsters the idea that humans suffering from these and other eye conditions may be able to help preserve function by adding antioxidants to their diet, and explains why this would work.

8 Feb 2009

Chemical mediator in blood found to also control breakdown of bone

A new study demonstrates that a chemical mediator in the blood that influences immune cell migration also plays a key role in maintaining the balance between the build-up and breakdown of bones in the body.

8 Feb 2009

Extra copies of LIS1 gene carry extra risk

Is more of a good thing better? A gene known as LIS1 is crucial for ensuring the proper placement of neurons in the developing brain.

5 Feb 2009

Sangamo BioSciences starts trial of CCR5-ZFP therapeutic to treat HIV/AIDS

Sangamo BioSciences, Inc. has announced that its collaborators at the University of Pennsylvania have opened a Phase 1 clinical trial to evaluate SB-728-T for the treatment of HIV/AIDS.

5 Feb 2009

New research may lead to new pharmacologic approaches to treating obesity

Scientists at the University of North Carolina at Chapel Hill School of Medicine have discovered a gene that when mutated causes obesity by dampening the body's ability to burn energy while leaving appetite unaffected.

5 Feb 2009

Disruption of circadian clock can suppress cancer growth

Researchers at the University of North Carolina at Chapel Hill have shown that disruption of the circadian clock - the internal time-keeping mechanism that keeps the body running on a 24-hour cycle - can slow the progression of cancer.

3 Feb 2009

Preventing prostate cancer the complex way

Blocking a specific protein complex prevents the formation of tumors in mice genetically predisposed to develop prostate cancer.

3 Feb 2009

Fat-free diet reduces liver fat in fat-free mice

Researchers at UT Southwestern Medical Center have uncovered crucial clues about a paradoxical disease in which patients with no body fat develop many of the health complications usually found in obese people.

3 Feb 2009

Peptide loaded gold nanospheres find, penetrate, then fuel burning of melanoma

Hollow gold nanospheres equipped with a targeting peptide find melanoma cells, penetrate them deeply, and then cook the tumor when bathed with near-infrared light, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center reported in the Feb. 1 issue of Clinical Cancer Research.

2 Feb 2009

Genetic change prevents cell death in mouse model of Parkinson's disease

By shifting a normal protective mechanism into overdrive, a University of Wisconsin-Madison scientist has completely shielded mice from a toxic chemical that would otherwise cause Parkinson's disease.

2 Feb 2009

New potential targets for colitis-associated cancer

Recent research from the laboratory of Michael Karin, PhD, at the University of California, San Diego School of Medicine - the first researcher to demonstrate a molecular link between inflammation and cancer - has identified two potential targets for the prevention and treatment of colitis-associated cancer (CAC), the most serious complication of inflammatory bowel disease.

2 Feb 2009

New insights into growth factor's role in brain development

New research sheds light on a neural growth factor called proBDNF, finding that it is present and potentially active during the perinatal period when the brain's circuitry and memory-encoding regions are being refined.

2 Feb 2009